844K Wheel Dozer
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Engine
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- Engine Model
- Cat® C27 ACERT™
- Gross Power
- 752.0hp
- Bore
- 5.4in
- Stroke
- 6.0in
- Displacement
- 1649.5in3
- Torque Rise
- 18.0%
- Emissions
- U.S. EPA Tier 4 Final or Tier 2 Equivalent
- Gross Power - ISO 14396
- 752.0hp
- Gross Power - SAE J1995
- 766.0hp
- Net Power - SAE J1349
- 699.0hp
- Net Power - SAE J1349 (High Ambient)
- 648.0hp
- Net Power - SAE J1349 (Standard Ambient)
- 699.0hp
- Peak Torque @ (speed)
- 2624.0lb ft
- Rated Speed
- 1800.0RPM
- Engine Model
- C27 Cat®
- Gross Power
- 752HP
- Bore
- 5.4in
- Stroke
- 6in
- Displacement
- 1649.5in³
- Torque Rise
- 18%
- Emissions
- U.S. EPA Tier 4 Final or Tier 2 Equivalent
- Gross Power - ISO 14396
- 752HP
- Gross Power - SAE J1995
- 766HP
- Net Power - SAE J1349
- 699HP
- Net Power - SAE J1349 - High Ambient
- 648HP
- Net Power - SAE J1349 - Standard Ambient
- 699HP
- Peak Torque - Speed
- 2624lb/ft
- Rated Speed
- 1800r/min
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Weights
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- Operating Weight
- 165089.0lb
- Operating Weight
- 165089lb
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Transmission
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- Converter Drive - Forward 1
- 4.5mph
- Converter Drive - Forward 2
- 8.3mph
- Converter Drive - Forward 3
- 14.2mph
- Converter Drive - Reverse 1
- 4.9mph
- Converter Drive - Reverse 2
- 9.1mph
- Converter Drive - Reverse 3
- 15.5mph
- Direct Drive - Forward 2
- 8.5mph
- Direct Drive - Forward 3
- 15.2mph
- Direct Drive - Reverse 1
- 5.4mph
- Direct Drive - Reverse 2
- 9.6mph
- Direct Drive - Reverse 3
- 16.4mph
- Direct Drive - Forward 1
- Lock-up disabled
- Transmission Type
- Cat Planetary Power Shift
- Converter Drive - Forward 1
- 4.5mile/h
- Converter Drive - Forward 2
- 8.3mile/h
- Converter Drive - Forward 3
- 14.2mile/h
- Converter Drive - Reverse 1
- 4.9mile/h
- Converter Drive - Reverse 2
- 9.1mile/h
- Converter Drive - Reverse 3
- 15.5mile/h
- Direct Drive - Forward 2
- 8.5mile/h
- Direct Drive - Forward 3
- 15.2mile/h
- Direct Drive - Reverse 1
- 5.4mile/h
- Direct Drive - Reverse 2
- 9.6mile/h
- Direct Drive - Reverse 3
- 16.4mile/h
- Direct Drive - Forward 1
- Lock-up disabled
- Transmission Type
- Cat Planetary Power Shift
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Service Refill Capacities
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- Fuel Tank - Standard
- 286.6gal
- Cooling System
- 54.9gal
- Crankcase
- 20.0gal
- Transmission
- 29.1gal
- Differentials and Final Drives - Front
- 71.6gal
- Differentials and Final Drives - Rear
- 68.9gal
- Hydraulic System - Implement and Hydraulic Fan
- 68.9gal (US)
- Hydraulic System - Steering and Braking
- 34.9gal (US)
- Fuel Tank - Standard
- 286.6gal (US)
- Cooling System
- 54.9gal (US)
- Crankcase
- 20gal (US)
- Transmission
- 29.1gal (US)
- Differential - Final Drives - Front
- 71.6gal (US)
- Differential - Final Drives - Rear
- 68.9gal (US)
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Axles
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- Front
- Fixed
- Rear
- Trunnion
- Oscillation Angle
- 8.5Degrees
- Front
- Fixed
- Rear
- Trunnion
- Oscillation Angle
- 8.5°
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Brakes
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- Brakes
- Meets ISO 3540:2011
- Brakes
- Meets ISO 3540:2011
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Cab
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- Air Conditioning
- Standard air conditioning system contains environmentally friendly R134a refrigerant
- FOPS
- FOPS meets SAE J231 JAN81 and ISO 3449:1992 Level II criteria.
- ROPS
- ROPS meets SAE J11040 APR88, ISO 3471:2008 and ISO 3471:1994 criteria.
- Cab - ROPS/FOPS (1)
- Cat cab with separate ROPS/FOPS is standard in North America, Europe and Japan.
- Cab - ROPS/FOPS (2)
- SAEÂ J11040Â APR88, ISOÂ 3471:2008, ISOÂ 3471:1994
- Air Conditioning
- Standard air conditioning system contains environmentally friendly R134a refrigerant
- FOPS
- FOPS meets SAE J231 JAN81 and ISO 3449:1992 Level II criteria.
- ROPS
- ROPS meets SAE J11040 APR88, ISO 3471:2008 and ISO 3471:1994 criteria.
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Hydraulic System - Lift/Tilt
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- Cylinder, Double-acting: Lift, Bore and Stroke
- 133 mm × 1535 mm (5.25 in × 60.4 in)
- Cylinder, Double Acting - Tilt and Tip, Bore and Stroke
- 210 mm × 188 mm (8.25 in × 7.4 in)
- Output at 2,000 rpm and 6900 kPa (1,000 psi)
- 82gal/min
- Relief Valve Setting - Bulldozer (Large Pump)
- 2700psi
- Relief Valve Setting - Tilt Cylinders (Small Pump)
- 2920psi
- Cylinders, Double Acting - Lift, Bore and Stroke
- 133 mm × 1535 mm (5.25 in × 60.4 in)
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Sound Performance - Suppression
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- Machine Sound Level (ISO 6395:2008)
- 113.0dB(A)
- Operator Sound Level (ISO 6396:2008)
- 69.0dB(A)
- Machine Sound Level (ISO 6395:2008)
- 113dB(A)
- Operator Sound Level (ISO 6396:2008)
- 69dB(A)
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Hydraulic System - Steering
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- Maximum Flow
- 94.3gal/min
- Steering System - Circuit
- Pilot, load sensing
- Steering System - Pump
- Piston, variable displacement
- Total Steering Angle
- 35.0Degrees
- Minimum Turning Radius - Over Blade
- 34ft
- Relief Valve Setting
- 4500psi
- Maximum Flow
- 94.3gal/min
- Steering System - Circuit
- Pilot, load sensing
- Steering System - Pump
- Piston, variable displacement
- Total Steering Angle
- 35°
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Dimensions (Approximate)
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- Center Line of Front Axle to Hitch
- 7.5ft
- Center Line of Rear Axle to Edge of Bumper
- 12.5ft
- Ground Clearance
- 2.0ft
- Height to Top of Exhaust Pipe
- 16.6ft
- Height to Top of Hood
- 12.7ft
- Height to Top of ROPS
- 17.2ft
- Length with Blade on Ground
- 36.5ft
- Wheelbase
- 15.1ft
- Centerline of Front Axle to Hitch
- 7.5ft
- Centerline of Rear Axle to Edge of Bumper
- 12.5ft
- Ground Clearance
- 2ft
- Height - Top of Exhaust Pipe
- 16.6ft
- Height - Top of Hood
- 12.7ft
- Height - Top of ROPS
- 17.2ft
- Length - With Blade on Ground
- 36.5ft
- Wheel Base
- 15.1ft
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Sound Performance - Standard
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- Machine Sound Level (ISO 6395:2008)
- 115.0dB(A)
- Operator Sound Level (ISO 6396:2008)
- 69.0dB(A)
- Machine Sound Level (ISO 6395:2008)
- 115dB(A)
- Operator Sound Level (ISO 6396:2008)
- 69dB(A)
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Blade
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- Blade Capacity Range
- 15,9-30,7 m3 (20,7-40,2 yd.3)
Standard Equipment:
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- Note
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- Standard and optional equipment may vary. Consult your Cat dealer for details.
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- Operator Environment
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- Air conditioner and heater with automatic temperature control
- Cab, sound-suppressed pressurized, protective structure (ROPS/FOPS), radio ready for (entertainment) includes antenna, speakers and converter (12V, 10-15 amp)
- 12V power port for mobile phone or laptop connection
- Camera, rear vision
- Cigar lighter and ashtray
- Coat hook
- Electro-hydraulic blade controls (seat mounted)
- Flip-up armrest
- Heater and defroster
- Horn, electric
- Implement hydraulic lockout
- Instrumentation, gauges: - Engine coolant temperature - Fuel level - Ground speed - Gear - Hydraulic oil temperature - Speedometer/tachometer - Torque converter temperature
- Instrumentation, warning indicators: - Action alert system, three category - Automatic transmission model enable status - Brake malfunction - Bucket float status - Delayed engine shutdown status - Engine idle shutdown status - Engine malfunction - Fuel economy mode enable status - Hydraulic lockout - Lockup clutch enable status - Low fuel level - Parking brake status - Rimpull control enable status - Seatbelt warning - Secondary steering (if equipped) - Throttle lock status - Transmission gear
- Keypad, control with indicator lights: - Auto trans mode speed range - Auto/manual transmission mode - Lockup clutch - Reduced rimpull - Throttle lock
- Light, dome (cab)
- Lunchbox and beverage holders
- Mirrors, rearview (externally mounted)
- Seat, Cat comfort (cloth) air suspension
- Seat belt, retractable, 76 mm (3 in) wide
- STIC control system with steering lock
- Tinted glass
- Trainer seat with lap belt
- Vital Information Management System (VIMS) 3G with graphical information display: external data port, customizable operator profiles
- Wet-arm wipers/washers (front, rear and corner) intermittent front wiper
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- Power Train
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- Brakes, full hydraulic, enclosed, oil-disc
- Axle-shaft oil-disc service brake
- Electro hydraulic parking brake
- Case drain filters
- Cat clean emission module (Tier 4 only)
- Demand fan
- Engine Cat C27
- Fuel priming pump (electric)
- Ground level engine shutoff, bumper
- Mufflers (under hood) (Tier 2 only)
- Precleaner, engine air intake
- Radiator, Aluminum Modular (AMR)
- Separated cooling system
- Starting aid, (ether) manual override
- Throttle Lock
- Torque Converter, Impeller Clutch with lock-up clutch feature and rimpull control system
- Transmission, 534 mm (21 in) planetary power shift (electronic) (3F/3R)
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- Electrical
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- Alarm, back-up
- Alternator, 150 amp
- Batteries, maintenance free (2 - 1,400 CCA)
- Converter, 10/15 amp, 24V to 12V
- Deutsch component connectors
- Electrical system, 24V
- Electronic transmission control
- Lighting system, halogen (front and rear) lighting, access stairway, engine compartment
- Starter, electric
- Starter lockout in bumper
- Starting receptacle for emergency start
- Transmission lockout in bumper
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- Other
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- Axle temperature sensor
- Battery disconnect and jump start receptacle, bumper
- Coupling, Caterpillar O-ring face seals
- Economy mode with on demand throttle
- Emergency platform egress
- Engine, crankcase, 500 hour interval with CH4
- Engine idle management features: - Auto idle kickdown - Delayed engine shutdown - Engine idle shutdown
- Fenders, steel (front)
- Guards, crankcase and power train
- Grouped/labeled lube points
- Hitch, drawbar with pin
- Hoses, Cat XT
- Oil sampling valves
- Positive flow control hydraulic system
- Product Link™
- Sight Gauges: hydraulic tanks, steering/fan and implement/brake, and transmission
- Stairway, left and right rear access
- Steering, load sensing
- Steering, secondary
- Toe kicks
- Vandalism protection caplocks
- Venturi stack
- Premixed 50% concentration of extended life coolant with freeze protection to -34° C (-29° F)
Optional Equipment:
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- Note
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- Standard and optional equipment may vary. Consult your Cat dealer for details.
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- Power Train
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- 50° C (-58° F) antifreeze
- Engine oil change system, high speed, Wiggins
- Engine block heater 120V or 240V
- High ambient cooling - software
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- Blades
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- Semi-U - 17.8 m3 (23.3 yd3)
- HD Semi-U - 16.1 m3 (21.1 yd3)
- Coal - 30.7 m3 (40.2 yd3)
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- Operator Environment
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- Cab precleaner
- AM/FM/CD/MP3 radio
- Satellite Sirius radio with Bluetooth
- LED warning strobe
- CB radio ready
- Window sun shade
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- Miscellaneous Attachments
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- Front and rear roading fenders
- Fast fill fuel system (Shaw-Aero)
- Axle oscillation stop
- Paint, black blade rear
